Document Library and other blocks that use color picker calculate window height wrong

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This bug appeared in 8.5.2 (at least I haven't experienced it in 8.5.1).

When you are adding block that uses color picker helper (for example Document Library, but its the same for any block that uses color picker, including those from marketplace) block height is calculated wrong.

The more color pickers you add, the shorter window is.
It happens only the first time you add/edit block after page load/refresh. When adding block second time/editing without page refresh, height is calculated correctly.
I experienced this bug on current version of Chrome, also the same thing sometimes happens on Firefox.

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Status: New

concrete5 Environment Information

# concrete5 Version
Core Version - 8.5.2
Version Installed - 8.5.2
Database Version - 20190925072210

# Database Information
Version: 10.0.38-MariaDB-0ubuntu0.16.04.1

# concrete5 Packages
Grand Gallery (1.1.6), Simple Gallery (1.0.7)

# concrete5 Overrides

# concrete5 Cache Settings
Block Cache - On
Overrides Cache - On
Full Page Caching - Off
Full Page Cache Lifetime - Every 6 hours (default setting).

# Server Software
Apache/2.4.18 (Ubuntu)

# Server API

# PHP Version

# PHP Extensions
apache2handler, apcu, calendar, Core, ctype, curl, date, dom, exif, fileinfo, filter, ftp, gd, gettext, hash, iconv, imagick, imap, intl, json, libxml, mbstring, mcrypt, memcache, mysqli, mysqlnd, openssl, pcre, PDO, pdo_mysql, pdo_sqlite, Phar, posix, pspell, readline, recode, Reflection, session, shmop, SimpleXML, sockets, SPL, sqlite3, standard, sysvmsg, sysvsem, sysvshm, tidy, tokenizer, wddx, xml, xmlreader, xmlrpc, xmlwriter, xsl, Zend OPcache, zip, zlib

# PHP Settings
max_execution_time - 30000
log_errors_max_len - 1024
max_file_uploads - 20
max_input_nesting_level - 64
max_input_time - 60
max_input_vars - 1000
memory_limit - 4096M
post_max_size - 4096M
sql.safe_mode - Off
upload_max_filesize - 2048M
memcache.max_failover_attempts - 20
mysqli.max_links - Unlimited
mysqli.max_persistent - Unlimited
pcre.backtrack_limit - 1000000
pcre.recursion_limit - 100000
session.cache_limiter - <i>no value</i>
session.gc_maxlifetime - 7200
opcache.max_accelerated_files - 2000
opcache.max_file_size - 0
opcache.max_wasted_percentage - 5

Browser User-Agent String

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36